Well [2] ... I don't think they're kidding. Please note that oxygen, even if mildly purified from what's in the athmosphere is one of the most destructive subs

Well [2] ... I don't think they're kidding. Please note that oxygen, even if mildly purified from what's in the athmosphere is one of the most destructive substances there is. If you're standing in 72% or more oxygen, a cough will burn you to a crisp. Much of the age related damage in human bodies is ultimately the effect of too much oxygen in one place at the same time. I know how it sounds, but please do keep in mind : oxygen is toxic, makes anything corrode, burn or explode (literally, you can coax half the noble gases into burning in sufficiently pure oxygen). Keep in mind the human body consists of water, carbon, oxygen and nitrogen. Everyone of those will react violently with oxygen, and while athmospheric concentrations are obviously safe, concentrated oxygen is NOT[1]. For the love of God, DO NOT aim a can of pure oxygen at a flame. And yes, concentrated oxygen can keep you alive with a damaged lung system (e.g. done to newborn infants, post-operational care, etc). Please do not confuse that with the idea that it's good for you. Please remember that 2-3% of people that that is done to end up with severe burns on their body (due to something unexpectedly catching fire with pure oxygen aimed at it). This is with professionals handling it. [1] http://en.wikipedia.org/wiki/Apollo_1#Pure_oxygen_atmosphere http://en.wikipedia.org/wiki/Apollo_1#Pure_oxygen_atmosphere [2] http://www.oxygenplus.com/ http://www.oxygenplus.com/